At present, both production and application of nanomaterials have attracted the attention of all countries. China's nanotechnology has made continuous progress, in nano-level SiO2, TiO2, Al2O3, ZnO2, Fe2O3 and other powder materials, has been successful industrial production or trial production, but the existing production process, high production cost is its fatal weakness, will affect the promotion and application of nanomaterials, so we should continue to improve.
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